According to the MISC on the BodyBuilding website: A white knight is defined as a male that treats woman as goddesses and does nothing but shower then in compliments on how wonderful and beautiful and special they are. Maybe be used as a noun or a verb.

Brah, if you keep white knighting every girl you meet, you'll never get as action.

A gaming term used to describe a male gamer who, in a desperate attempt to get himself laid, will attempt to woo or impress any female gamer he comes across online by being overly defensive of her and giving her special attention, such as playing as a healing class and only healing her.

Why do those white knights try so hard to impress the girls they run into online? Do they actually think they're going to get laid?

Got some girls being butt-hurt? Got some white teenaged males with nothing to do?
Introducing white knighting! A perfectly respectable act of suddenly becoming chivalric and nice by the mere presence of e-boob.

A person, generally a man, who is seen giving all their attention to one or many particular females online.

The most common places that White Knights dwell is on 4chan's random board and various online games towards the RPG persuasion. However, White Knights are found everywhere in the online world.

This self motivated acts of chivalry is not geared toward just saving the hambeast maidens, but also White Knights have been noted to follow the rules adamantly in hopes of either becoming a moderator/admin or just flat out want to spoil the general online population's fun of bending the rules.

White Knights are not fun, but instead stuffy, boring, and an unusual hatred towards their fellow man for being selfish, crude and misogynists, in other words: All the fun things in life.

Anon: Let's have fun teasing this hambeast on livestream!
Anons: Yeah! Let's do it!
White Knight: Halt! In the name of chivalry, you foul heathen misogunists will burn as I save the maiden with kindness and give her solace with compliments!
Anons: Eat a dick WK, stop killing our buzz.

Anon: *reading rules* No swear? Fuck that shit!
White Knight: You there! You have broken a rule! I shall report you to the nearest moderator for correction!
Anon: Eat a dick WK, you can't tell me what to do because you're not a moderator.
White Knight: Just because I don't have a tag in front of my name doesn't mean I can't uphold the law! I AM THE LAW!